LIGHT SCANNING DEVICE AND IMAGE FORMING APPARATUS

摘要

A light scanning device of the invention includes a scan deflection range of each of the light fluxes deflected by the deflecting part in a scan period of the scan object with the respective light fluxes is divided into a first deflection range where a reflection angle of each of the light fluxes with respect to the deflecting part is small and a second deflection range where the reflection angle is large. A polarization direction of each of the light fluxes is set such that a reflectivity of the reflective mirror when each of the light fluxes deflected in the second deflection range is reflected becomes larger than a reflectivity of the reflective mirror when each of the light fluxes deflected in the first deflection range is reflected.

主权项

1. A light scanning device, comprising:
a light-emitting element with a plurality of light-emitting points, respective light fluxes being emitted from the plurality of light-emitting points; a deflecting part configured to reflect to deflect the respective light fluxes; and a reflective mirror configured to reflect the respective light fluxes reflected to be deflected by the deflecting part; wherein the light scanning device is configured to scan a scan object with the respective light fluxes passing through the deflecting part and the reflective mirror, a scan deflection range of each of the light fluxes deflected by the deflecting part in a scan period of the scan object with the respective light fluxes is divided into a first deflection range where a reflection angle of each of the light fluxes with respect to the deflecting part is small and a second deflection range where the reflection angle is large, and a polarization direction of each of the light fluxes is set such that a reflectivity of the reflective mirror when each of the light fluxes deflected in the second deflection range is reflected becomes larger than a reflectivity of the reflective mirror when each of the light fluxes deflected in the first deflection range is reflected.